Function downloadInstallAndBundle

packages/backends/src/utils.ts:14–76

(
  args: Parameters<BuildV2>[0]
)

import type { BuildV2 } from '@vercel/build-utils';

export async function downloadInstallAndBundle(
  args: Parameters<BuildV2>[0]
): Promise<{
  spawnEnv: {
    [x: string]: string | undefined;
  };
  entrypointFsDirname: string;
  cliType: Awaited<ReturnType<typeof scanParentDirs>>['cliType'];
  lockfilePath: string | undefined;
  lockfileVersion: number | undefined;
}> {
  const { entrypoint, files, workPath, meta, config, repoRootPath } = args;
  await download(files, workPath, meta);

  const entrypointFsDirname = join(workPath, dirname(entrypoint));

  const {
    cliType,
    lockfilePath,
    lockfileVersion,
    packageJsonPackageManager,
    turboSupportsCorepackHome,
  } = await scanParentDirs(entrypointFsDirname, true, repoRootPath);

  const spawnEnv = getEnvForPackageManager({
    cliType,
    lockfileVersion,
    packageJsonPackageManager,
    env: process.env,
    turboSupportsCorepackHome,
    projectCreatedAt: config.projectSettings?.createdAt,
  });

  const installCommand = config.projectSettings?.installCommand;
  if (typeof installCommand === 'string') {
    if (installCommand.trim()) {
      console.log(`Running "install" command: \`${installCommand}\`...`);
      await execCommand(installCommand, {
        env: spawnEnv,
        cwd: entrypointFsDirname,
      });
    } else {
      console.log(`Skipping "install" command...`);
    }
  } else {
    await runNpmInstall(
      entrypointFsDirname,
      [],
      {
        env: spawnEnv,
      },
      meta,
      config.projectSettings?.createdAt
    );
  }
  return {
    entrypointFsDirname,
    spawnEnv,